int main(int argc, char *argv[])
{
LibUtilities::SessionReaderSharedPtr vSession
= LibUtilities::SessionReader::CreateInstance(argc, argv);
LibUtilities::CommSharedPtr vComm = vSession->GetComm();
MultiRegions::DisContField3DSharedPtr Exp, Fce;
int i, nq, coordim;
Array<OneD,NekDouble> fce;
Array<OneD,NekDouble> xc0,xc1,xc2;
StdRegions::ConstFactorMap factors;
if(argc < 2)
{
fprintf(stderr,"Usage: HDGHelmholtz3D meshfile [solntype]\n");
exit(1);
}
LibUtilities::FieldIOSharedPtr fld = MemoryManager<LibUtilities::FieldIO>::AllocateSharedPtr(vComm);
//----------------------------------------------
// Read in mesh from input file
SpatialDomains::MeshGraphSharedPtr graph3D =
MemoryManager<SpatialDomains::MeshGraph3D>::AllocateSharedPtr(vSession);
//----------------------------------------------
//----------------------------------------------
// Print summary of solution details
factors[StdRegions::eFactorLambda] = vSession->GetParameter("Lambda");
factors[StdRegions::eFactorTau] = 1.0;
const SpatialDomains::ExpansionMap &expansions = graph3D->GetExpansions();
LibUtilities::BasisKey bkey0
= expansions.begin()->second->m_basisKeyVector[0];
if (vComm->GetRank() == 0)
{
cout << "Solving 3D Helmholtz:" << endl;
cout << " - Communication: "
<< vSession->GetComm()->GetType() << " ("
<< vSession->GetComm()->GetSize()
<< " processes)" << endl;
cout << " - Solver type : "
<< vSession->GetSolverInfo("GlobalSysSoln") << endl;
cout << " - Lambda : "
<< factors[StdRegions::eFactorLambda] << endl;
cout << " - No. modes : "
<< bkey0.GetNumModes() << endl;
cout << endl;
}
//----------------------------------------------
//----------------------------------------------
// Define Expansion
Exp = MemoryManager<MultiRegions::DisContField3D>::
AllocateSharedPtr(vSession,graph3D,vSession->GetVariable(0));
//----------------------------------------------
Timing("Read files and define exp ..");
//----------------------------------------------
// Set up coordinates of mesh for Forcing function evaluation
coordim = Exp->GetCoordim(0);
nq = Exp->GetTotPoints();
xc0 = Array<OneD,NekDouble>(nq,0.0);
xc1 = Array<OneD,NekDouble>(nq,0.0);
xc2 = Array<OneD,NekDouble>(nq,0.0);
switch(coordim)
{
case 1:
Exp->GetCoords(xc0);
break;
case 2:
Exp->GetCoords(xc0,xc1);
break;
case 3:
Exp->GetCoords(xc0,xc1,xc2);
break;
}
//----------------------------------------------
//----------------------------------------------
// Define forcing function for first variable defined in file
fce = Array<OneD,NekDouble>(nq);
LibUtilities::EquationSharedPtr ffunc = vSession->GetFunction("Forcing", 0);
ffunc->Evaluate(xc0, xc1, xc2, fce);
//----------------------------------------------
//----------------------------------------------
// Setup expansion containing the forcing function
Fce = MemoryManager<MultiRegions::DisContField3D>::AllocateSharedPtr(*Exp);
Fce->SetPhys(fce);
//----------------------------------------------
Timing("Define forcing ..");
//----------------------------------------------
// Helmholtz solution taking physical forcing
Exp->HelmSolve(Fce->GetPhys(), Exp->UpdateCoeffs(), NullFlagList, factors);
//----------------------------------------------
Timing("Helmholtz Solve ..");
#if 0
for(i = 0; i < 100; ++i)
{
Exp->HelmSolve(Fce->GetPhys(), Exp->UpdateCoeffs(), NullFlagList, factors);
}
Timing("100 Helmholtz Solves:... ");
#endif
//----------------------------------------------
// Backward Transform Solution to get solved values at
Exp->BwdTrans(Exp->GetCoeffs(), Exp->UpdatePhys());
//----------------------------------------------
Timing("Backward Transform ..");
//-----------------------------------------------
// Write solution to file
string out = vSession->GetSessionName() + ".fld";
std::vector<LibUtilities::FieldDefinitionsSharedPtr> FieldDef
= Exp->GetFieldDefinitions();
std::vector<std::vector<NekDouble> > FieldData(FieldDef.size());
for(i = 0; i < FieldDef.size(); ++i)
{
FieldDef[i]->m_fields.push_back("u");
Exp->AppendFieldData(FieldDef[i], FieldData[i]);
}
fld->Write(out, FieldDef, FieldData);
//-----------------------------------------------
//----------------------------------------------
// See if there is an exact solution, if so
// evaluate and plot errors
LibUtilities::EquationSharedPtr ex_sol =
vSession->GetFunction("ExactSolution", 0);
if(ex_sol)
{
//----------------------------------------------
// evaluate exact solution
ex_sol->Evaluate(xc0, xc1, xc2, fce);
//----------------------------------------------
//--------------------------------------------
// Calculate L_inf error
Fce->SetPhys(fce);
Fce->SetPhysState(true);
NekDouble vLinfError = Exp->Linf(Exp->GetPhys(), Fce->GetPhys());
NekDouble vL2Error = Exp->L2 (Exp->GetPhys(), Fce->GetPhys());
NekDouble vH1Error = Exp->H1 (Exp->GetPhys(), Fce->GetPhys());
if (vComm->GetRank() == 0)
{
cout << "L infinity error: " << vLinfError << endl;
cout << "L 2 error : " << vL2Error << endl;
cout << "H 1 error : " << vH1Error << endl;
}
//--------------------------------------------
}
Timing("Output ..");
//----------------------------------------------
vSession->Finalise();
return 0;
}
int main(int argc, char *argv[])
{
Array<OneD,NekDouble> fce;
Array<OneD,NekDouble> xc0,xc1,xc2;
if(argc < 2)
{
fprintf(stderr,"Usage: XmlToTecplot meshfile\n");
exit(1);
}
LibUtilities::SessionReader::RegisterCmdLineFlag(
"multi-zone", "m", "Output multi-zone format (one element per zone).");
LibUtilities::SessionReaderSharedPtr vSession
= LibUtilities::SessionReader::CreateInstance(argc, argv);
//----------------------------------------------
// Read in mesh from input file
string meshfile(argv[argc-1]);
SpatialDomains::MeshGraphSharedPtr graphShPt
= SpatialDomains::MeshGraph::Read(vSession);
//----------------------------------------------
//----------------------------------------------
// Set up Expansion information
SpatialDomains::ExpansionMap emap = graphShPt->GetExpansions();
SpatialDomains::ExpansionMapIter it;
for (it = emap.begin(); it != emap.end(); ++it)
{
for (int i = 0; i < it->second->m_basisKeyVector.size(); ++i)
{
LibUtilities::BasisKey tmp1 = it->second->m_basisKeyVector[i];
LibUtilities::PointsKey tmp2 = tmp1.GetPointsKey();
it->second->m_basisKeyVector[i] = LibUtilities::BasisKey(
tmp1.GetBasisType(), tmp1.GetNumModes(),
LibUtilities::PointsKey(tmp1.GetNumModes(),
LibUtilities::ePolyEvenlySpaced));
}
}
//----------------------------------------------
//----------------------------------------------
// Define Expansion
int expdim = graphShPt->GetMeshDimension();
Array<OneD, MultiRegions::ExpListSharedPtr> Exp(1);
switch(expdim)
{
case 1:
{
MultiRegions::ExpList1DSharedPtr Exp1D;
Exp1D = MemoryManager<MultiRegions::ExpList1D>::AllocateSharedPtr(vSession,graphShPt);
Exp[0] = Exp1D;
break;
}
case 2:
{
if(vSession->DefinesSolverInfo("HOMOGENEOUS"))
{
std::string HomoStr = vSession->GetSolverInfo("HOMOGENEOUS");
MultiRegions::ExpList3DHomogeneous1DSharedPtr Exp3DH1;
ASSERTL0(
HomoStr == "HOMOGENEOUS1D" || HomoStr == "Homogeneous1D" ||
HomoStr == "1D" || HomoStr == "Homo1D",
"Only 3DH1D supported for XML output currently.");
int nplanes;
vSession->LoadParameter("HomModesZ", nplanes);
// choose points to be at evenly spaced points at nplanes + 1
// points
const LibUtilities::PointsKey Pkey(
nplanes + 1, LibUtilities::ePolyEvenlySpaced);
const LibUtilities::BasisKey Bkey(
LibUtilities::eFourier, nplanes, Pkey);
NekDouble lz = vSession->GetParameter("LZ");
Exp3DH1 = MemoryManager<MultiRegions::ExpList3DHomogeneous1D>
::AllocateSharedPtr(
vSession, Bkey, lz, false, false, graphShPt);
Exp[0] = Exp3DH1;
}
else
{
MultiRegions::ExpList2DSharedPtr Exp2D;
Exp2D = MemoryManager<MultiRegions::ExpList2D>::AllocateSharedPtr(vSession,graphShPt);
Exp[0] = Exp2D;
}
break;
}
case 3:
{
MultiRegions::ExpList3DSharedPtr Exp3D;
Exp3D = MemoryManager<MultiRegions::ExpList3D>::AllocateSharedPtr(vSession,graphShPt);
Exp[0] = Exp3D;
break;
}
default:
ASSERTL0(false,"Expansion dimension not recognised");
break;
}
//-----------------------------------------------
//----------------------------------------------
// Write solution depending on #define
string outfile(strtok(argv[argc-1],"."));
outfile += ".dat";
ofstream outstrm(outfile.c_str());
Exp[0]->WriteTecplotHeader(outstrm);
if (vSession->DefinesCmdLineArgument("multi-zone"))
{
int nExp = Exp[0]->GetExpSize();
for (int i = 0; i < nExp; ++i)
{
Exp[0]->WriteTecplotZone (outstrm, i);
Exp[0]->WriteTecplotConnectivity(outstrm, i);
}
}
else
{
Exp[0]->WriteTecplotZone (outstrm);
Exp[0]->WriteTecplotConnectivity(outstrm);
}
outstrm.close();
//----------------------------------------------
return 0;
}
int main(int argc, char *argv[])
{
LibUtilities::SessionReaderSharedPtr vSession
= LibUtilities::SessionReader::CreateInstance(argc, argv);
LibUtilities::CommSharedPtr vComm = vSession->GetComm();
MultiRegions::ContField1DSharedPtr Exp,Fce;
int i, nq, coordim;
Array<OneD,NekDouble> fce;
Array<OneD,NekDouble> xc0,xc1,xc2;
StdRegions::ConstFactorMap factors;
if( (argc != 2) && (argc != 3) && (argc != 4))
{
fprintf(stderr,"Usage: Helmholtz1D meshfile \n");
exit(1);
}
try
{
LibUtilities::FieldIOSharedPtr fld =
MemoryManager<LibUtilities::FieldIO>::AllocateSharedPtr(vComm);
//----------------------------------------------
// Read in mesh from input file
SpatialDomains::MeshGraphSharedPtr graph1D =
SpatialDomains::MeshGraph::Read(vSession);
//----------------------------------------------
//----------------------------------------------
// Print summary of solution details
factors[StdRegions::eFactorLambda] = vSession->GetParameter("Lambda");
const SpatialDomains::ExpansionMap &expansions = graph1D->GetExpansions();
LibUtilities::BasisKey bkey0 = expansions.begin()->second->m_basisKeyVector[0];
if (vComm->GetRank() ==0)
{
cout << "Solving 1D Helmholtz: " << endl;
cout << " Communication: " << vComm->GetType() << endl;
cout << " Solver type : " << vSession->GetSolverInfo("GlobalSysSoln") << endl;
cout << " Lambda : " << factors[StdRegions::eFactorLambda] << endl;
cout << " No. modes : " << bkey0.GetNumModes() << endl;
}
//----------------------------------------------
//----------------------------------------------
// Define Expansion
Exp = MemoryManager<MultiRegions::ContField1D>::
AllocateSharedPtr(vSession,graph1D,vSession->GetVariable(0));
//----------------------------------------------
//----------------------------------------------
// Set up coordinates of mesh for Forcing function evaluation
coordim = Exp->GetCoordim(0);
nq = Exp->GetTotPoints();
xc0 = Array<OneD,NekDouble>(nq);
xc1 = Array<OneD,NekDouble>(nq);
xc2 = Array<OneD,NekDouble>(nq);
switch(coordim)
{
case 1:
Exp->GetCoords(xc0);
Vmath::Zero(nq,&xc1[0],1);
Vmath::Zero(nq,&xc2[0],1);
break;
case 2:
Exp->GetCoords(xc0,xc1);
Vmath::Zero(nq,&xc2[0],1);
break;
case 3:
Exp->GetCoords(xc0,xc1,xc2);
break;
}
//----------------------------------------------
//----------------------------------------------
// Define forcing function for first variable defined in file
fce = Array<OneD,NekDouble>(nq);
LibUtilities::EquationSharedPtr ffunc
= vSession->GetFunction("Forcing", 0);
ffunc->Evaluate(xc0,xc1,xc2, fce);
//----------------------------------------------
//----------------------------------------------
// Setup expansion containing the forcing function
Fce = MemoryManager<MultiRegions::ContField1D>::AllocateSharedPtr(*Exp);
Fce->SetPhys(fce);
//----------------------------------------------
//----------------------------------------------
//Helmholtz solution taking physical forcing after setting
//initial condition to zero
Vmath::Zero(Exp->GetNcoeffs(),Exp->UpdateCoeffs(),1);
Exp->HelmSolve(Fce->GetPhys(), Exp->UpdateCoeffs(), NullFlagList, factors);
//----------------------------------------------
//----------------------------------------------
// Backward Transform Solution to get solved values at
Exp->BwdTrans(Exp->GetCoeffs(), Exp->UpdatePhys());
//----------------------------------------------
//----------------------------------------------
// Write solution
string out(strtok(argv[1],"."));
string endfile(".fld");
out += endfile;
std::vector<LibUtilities::FieldDefinitionsSharedPtr> FieldDef
= Exp->GetFieldDefinitions();
std::vector<std::vector<NekDouble> > FieldData(FieldDef.size());
for(i = 0; i < FieldDef.size(); ++i)
{
FieldDef[i]->m_fields.push_back("u");
Exp->AppendFieldData(FieldDef[i], FieldData[i]);
}
fld->Write(out, FieldDef, FieldData);
//----------------------------------------------
//----------------------------------------------
// See if there is an exact solution, if so
// evaluate and plot errors
LibUtilities::EquationSharedPtr ex_sol
= vSession->GetFunction("ExactSolution", 0);
if(ex_sol)
{
//----------------------------------------------
// evaluate exact solution
ex_sol->Evaluate(xc0,xc1,xc2, fce);
Fce->SetPhys(fce);
//----------------------------------------------
//--------------------------------------------
// Calculate errors
NekDouble vLinfError = Exp->Linf(Exp->GetPhys(), Fce->GetPhys());
NekDouble vL2Error = Exp->L2(Exp->GetPhys(), Fce->GetPhys());
NekDouble vH1Error = Exp->H1(Exp->GetPhys(), Fce->GetPhys());
if (vComm->GetRank() == 0)
{
cout << "L infinity error: " << vLinfError << endl;
cout << "L 2 error: " << vL2Error << endl;
cout << "H 1 error: " << vH1Error << endl;
}
//--------------------------------------------
}
//----------------------------------------------
}
catch (const std::runtime_error&)
{
cerr << "Caught exception." << endl;
return 1;
}
vComm->Finalise();
return 0;
}
